<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<link rel="stylesheet" href="../css/bootstrap.min.css">
<script src="../js/bootstrap.min.js"></script>
</head>
<body>
<div class="container mt-3">
    <div class="spinner-border"></div>
    <h2>加载中……</h2>
</div>

 
</body>
</html>